I’m calling this misfire an odd one because I’ve have search varies forums for this type of symptom. I have cressida rebuild swap 7mgte with about 12,000 miles on it been running great until last week, it starting getting this weird misfire. It only occurs during cold start and warming up and smell of gas. The misfire will disappear when I rev it and when the engine is warmed up. I have checked the spark plugs, afm, igniter, coils, cps, fuel resistor, injectors with an ear to a screw driver to listen for the click all seem to opening normal, vacuum leaks (none) other sensors knock sensors thermostat etc, all good. Vsv's, one for the egr was not working but I don't think its causing that.:dunno:, but I replaced it with a working one. After the warming up and one minute of driving it goes away but not completely, there's a small hiccup every few seconds which I can feel through my seat and the exhaust. No codes, drives completely normal, no hiccups when boosting or cruising, although there a slight hesitation when tapping the throttle but hardly noticeable hearing inside the car maybe because my intercooling carries too much cfm for throttle to maf response. I don't think I have a head gasket issues because I never over heated, I also burp the system while the revving the engine no bubbles came, not losing any coolant. Pulls as strong as it did after the its break in
Specs:
Stock 7mgte head and bottom end
3” ddp full exhaust
2.5” intercooling with large intercooler
Custom intake
freddy bov recirculated
1.4mm mhg
stock turbo
stock injectors
Walbro 255lph
http://s995.photobucket.com/albums/af74/TheSTREET90/?action=view¤t=misfire.mp4
Specs:
Stock 7mgte head and bottom end
3” ddp full exhaust
2.5” intercooling with large intercooler
Custom intake
freddy bov recirculated
1.4mm mhg
stock turbo
stock injectors
Walbro 255lph
http://s995.photobucket.com/albums/af74/TheSTREET90/?action=view¤t=misfire.mp4
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